Hi guys, I have installed Windows 7 Ultimate 64 bit as soon as the RTM came out. I then activated it using Windows Loader by Daz. It's been activated for like 9 months now but I never tried installing WAT; scared that I might be flagged as using un-genuine windows. Recently I found out a MAK Key with around 8000 activations left in it. I tried it in W7 Pro VM and it worked. I tried installing WAT on it and it passed the test successfully. Here's my question: Since that key is legit and passed the validation test, is it worth downgrading to the Professional version of Windows 7? Is the process completely safe? (I upgraded from XP to Vista and then to Windows 7 when it came out flawlessly so this procedure should be successful since its the same version of windows) Thanks for any help.